L + W + L + W = 548 (perimeter) (2W+64) + W + (2W+64) + W = 548 6W + 128 = 548 ====> 6W = 548 - 128 = 420 ====> W == 70. Thus we found the width. It is W = 70 yards. Then the length is L = 2W + 64 = 2*70 + 64 = 204 yards. Answer. The dimensions are 70 yards (the width) and 204 yards (the length).